Hydraulic assessment of non-circular-section building drainage

Cummings, Steve; McDougall, Jean A.; Swaffield, John

doi:10.1080/09613210601097913

Cited by 2 publications

(3 citation statements)

References 7 publications

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Section: Non-circular Pipesmentioning

confidence: 99%

“…Cummings, Swaffield and Wakelin presented research on hydraulic assessment of non-circular-section building drainage [26]. This was not the first time that Swaffield was involved in looking at research into alternative drain cross sections as reference was made to Swaffield completing a consultancy project in this area in 1997 [26]. The 2007 research provides results from solid transfer in a range of pipe diameters, including 75 mm, 100 mm and a parabolic gutter; it appears that the parabolic gutter is the gutter referred to in Figure 3 reported by McDougall and Wakelin [53].…”

Section: Non-circular Pipesmentioning

confidence: 99%

“…In Cummings et al [26] which included Swaffield, recommendations for further work into innovative drainage networks were implied while discussing the use of non-circular sewers. Comments were made by Swaffield [3] [4], implying that research in the area of solid transport in sewers as being completed, is given in Section 9.4.…”

Section: Recommendations For Further Workmentioning

confidence: 99%

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Solid Transfer in Low Flow Sewers, the Distance Travelled So Far Is Not Enough

McDermott¹,

Strong²,

Griffiths³

2019

JEP

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Sewer blockages are on the increase whilst water closet (WC) flush volumes are on the decrease. Furthermore, Water UK reported figures show that the actual number of properties affected by sewer flooding is on the rise. Sewer blockages can lead to sewer flooding of homes and collapse of sewers which impact negatively on social, economic and environmental factors, and therefore, they are not sustainable. Water conservation is required due to water stress but reduced water use results in less water to waste, which in turn reduces solids' transfer in sewers. When considering reducing water usage through water conservation, these savings could be cancelled out by an increased population and the situation exacerbated by the impacts of climate change. There are issues in relation to varying design methods, a reliance on engineering judgement in sewer design, uncertainty relating to future water stress, and a lack of cross disciplinary design decision-making. Public health engineering solutions are needed to reduce the number of sewer blockages and the environmental impact of sewer flooding. This paper examines the fundamental research that have been carried out in the area of "solid transfer in sewers" resulting from "less water to waste" since the mid-20th Century. Contrary to existing literature, this paper identifies that, now more than ever, this type of research is needed to deal with the increased need for water conservation. To judge that solid transfer research is complete can be compared to supporting a statement that "water conservation is complete".

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Section: Non-circular Pipesmentioning

confidence: 99%

Section: Non-circular Pipesmentioning

confidence: 99%

Section: Recommendations For Further Workmentioning

confidence: 99%

See 1 more Smart Citation

Solid Transfer in Low Flow Sewers, the Distance Travelled So Far Is Not Enough

McDermott¹,

Strong²,

Griffiths³

2019

JEP

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Experimental study on the hydraulic performance of the horizontal main drain of building drainage systems with solid waste

Xu,

Fu,

Song

2023

Journal of Hydroinformatics

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Water–air two-phase flow has been the theoretical basis of traditional building drainage systems. However, with the popularization of water-saving devices, more research investigations need to be performed on the impact of solid waste on drainage systems. Through experiments under the solid waste scenario, the effects of drainage volume, diameter, and slope of the pipeline on the hydraulic performances of the horizontal main drain were investigated. The results showed that the depth ratio was mainly responsible for the change of positive pressure value in the horizontal main drain. The depth ratios and the positive pressure values were proportional to the drainage volumes and inversely proportional to the diameters and slopes of the pipeline. The final deposition distances of solid wastes in the horizontal main drain were proportional to the discharge volumes and the pipeline slopes. However, the effects of pipe diameters and flow rates on final deposition distances need to be considered in sections. The self-cleaning lengths based on clear water were 1.2–1.6 times the real final deposition distances of solid wastes.

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Hydraulic assessment of non-circular-section building drainage

Cited by 2 publications

References 7 publications

Solid Transfer in Low Flow Sewers, the Distance Travelled So Far Is Not Enough

Solid Transfer in Low Flow Sewers, the Distance Travelled So Far Is Not Enough

Experimental study on the hydraulic performance of the horizontal main drain of building drainage systems with solid waste

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